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Sorting by What You Can See is a free printable Grade 2 science worksheet on classifying materials by their observable properties, aligned to Common Core standard 2-PS1-1. It prints 3 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 10 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Sorting by What You Can See

2-PS1-1

NameDate

Sort each material into the right group.

1.Sort each one: Hard and stiff or Soft and bendy or You can see through it?

Sort: A cotton sock, A glass jar, A clear plastic sheet

Hard and stiffSoft and bendyYou can see through it
2.Sort each one: Hard and stiff or Soft and bendy or You can see through it?

Sort: A window pane, A rubber band, A wooden ruler

Hard and stiffSoft and bendyYou can see through it
3.Sort each one: Hard and stiff or Soft and bendy or You can see through it?

Sort: A sponge, Steel spoon, A cellophane wrapper

Hard and stiffSoft and bendyYou can see through it

LessonPrint · 2-PS1-1 · Set 10 · free to copy for classroom use

Answer key — Sorting by What You Can See

Set 10. Prints on its own sheet.

  1. 1.1. A clear plastic sheet — You can see through it 2. A cotton sock — Soft and bendy 3. A glass jar — Hard and stiff
  2. 2.1. A rubber band — Soft and bendy 2. A window pane — You can see through it 3. A wooden ruler — Hard and stiff
  3. 3.1. A cellophane wrapper — You can see through it 2. A sponge — Soft and bendy 3. Steel spoon — Hard and stiff

More practice for 2-PS1-1

Sort materials by what you can observe about them.

Teaching this next? Sorting by What You Can See is the 50-minute plan for it, with the misconceptions to expect.

All Grade 2 worksheets

Last reviewed 2026-09-05. Aligned to 2-PS1-1 of the Next Generation Science Standards.